Invent path-based inode numbers

* procfs.h, procfs.c (procfs_make_ino): New function,
  invents an inode number by hashing the parent's and the name of an
  entry.  (procfs_lookup): Use it to assign an inode number to child
  nodes at lookup time.
* main.c (root_make_node): Assign an arbitrary inode number to
  the root directory.

1 files changed, 4 insertions, 0 deletions

diff --git a/main.c b/main.c
index e08bbdb..1560281 100644
--- a/main.c
+++ b/main.c
@@ -42,6 +42,10 @@ root_make_node (struct node **np)
   if (! *np)
     return ENOMEM;
 
+  /* Since this one is not created through proc_lookup(), we have to affect an
+     inode number to it.  */
+  (*np)->nn_stat.st_ino = * (uint32_t *) "PROC";
+
   return 0;
 }